Clever Care Health Plan is the best Medicare Advantage company in California for 2027, with a 4.5-star median CMS rating and the lowest median maximum annual cost exposure at $1,249. SCAN Health Plan ranks second, offering 44 plans across 20 counties with a 4.0-star median CMS rating and $2,000 in median cost exposure.
Imperial Health Plan ranks third and serves the most counties among the top insurers at 51, with a median cost exposure of $1,647. Kaiser Permanente has the most plans after SCAN at 31, ties Clever Care for the highest median CMS rating at 4.5 stars and serves 31 counties, though its $5,076 median cost exposure is the highest among the companies reviewed.

















